TU Xiaohua, CHU Youqun, ZHAO Fengming, et al. Thermal and electrochemical performance of novel binary molten salt electrolyte based on LiTFSI/NaTf[J]. CIESC Journal, 2009, (2): 409-414.
TU Xiaohua, CHU Youqun, ZHAO Fengming, et al. Thermal and electrochemical performance of novel binary molten salt electrolyte based on LiTFSI/NaTf[J]. CIESC Journal, 2009, (2): 409-414.DOI:
The thermal and electrochemical performance of a novel binary low temperature molten salt electrolyte based on LiTFSI/NaTf was studied with thermogravimetry/differential thermal analysis(TG/DTA),electrochemical impedance spectroscopy(EIS)and cyclic voltammetry.TG/DTA showed that the electrolyte had good thermal stability with no thermal decomposition below 300℃.The eutectic temperature of the LiTFSI/NaTf was 188℃ at the molar ratio of 1∶3.The molten salt electrolyte had good ionic conductivity .The ionic conductivity decreased with the increase of LiTFSI molar fraction.The electrochemical window of the molten salt electrolyte at the molar ratio of 1∶3 was calculated to be 4.7 V at 230℃.